Abstract
A number of hypotheses have been proposed for the evolution of sex differences in spatial ability. Two of these hypotheses assume a sex-based division of labor in foraging during human evolutionary history, three propose sexual selection for spatial ability, and two suggest that human life history has imposed sex-specific selection on spatial abilities. We derive predictions from each of these models and test the predictions against recent data on the effects of hormones on spatial ability across the lifespan. Sexual selection for increased range size in males might be the evolutionary origin of the enhancing effects of testosterone on spatial ability, while the benefits of reduced mobility in women at different stages of reproduction could be the origin of the inhibitory effects of oestrogen on spatial ability.
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